body{font-family:'Inter',sans-serif}.lesson-card{background-color:#fff;border-radius:.75rem;box-shadow:0 4px 6px -1px rgb(0 0 0 / .1),0 2px 4px -2px rgb(0 0 0 / .1);padding:1.5rem;margin-bottom:2rem;transition:all 0.3s ease-in-out}.vocab-card{cursor:pointer;border:1px solid #e7e5e4}.vocab-card .back{display:none}.vocab-card.is-flipped .back{display:block}.vocab-card.is-flipped .front{display:none}.answer{display:none;transition:opacity 0.5s ease}.viewpoint-btn{transition:all 0.2s ease-in-out;background-color:#fff;border:1px solid #27537a;color:#27537a}.viewpoint-btn:hover{background-color:#f0f3f6}.viewpoint-btn.active{background-color:#27537a;color:#fff;transform:scale(1.05)}.brand-heading{color:#596c10}.brand-accent-text{color:#596c10}.game-item{padding:.75rem;border:2px solid #c7c79d;border-radius:.5rem;cursor:pointer;transition:all 0.2s ease-in-out;background-color:#f1e5da}.game-item:hover{border-color:#27537a;transform:translateY(-2px)}.game-item.selected{background-color:#f4d488;border-color:#27537a}.game-item.correct{background-color:#596c10;color:#fff;border-color:#596c10;cursor:default}.game-item.incorrect{background-color:#ef4444;color:#fff;border-color:#ef4444}.game-item.disabled{opacity:.7;cursor:not-allowed;pointer-events:none}.reason-input{width:100%;padding:.5rem;border:1px solid #c7c79d;border-radius:.375rem}.add-reason-btn{padding:.5rem 1rem;border-radius:.375rem;color:#fff;background-color:#27537a;flex-shrink:0}.reason-list li{background-color:#f1e5da;padding:.5rem;border-radius:.375rem;display:flex;justify-content:space-between;align-items:center}.delete-reason-btn{background:none;border:none;color:#ef4444;cursor:pointer;font-weight:700}.response-card{display:flex;justify-content:space-between;align-items:center;padding:.75rem;background-color:#f1e5da;border-radius:.5rem}.response-btn{padding:.5rem 1rem;border:1px solid #27537a;color:#27537a;border-radius:.375rem;cursor:pointer;transition:all 0.2s ease}.response-btn.selected{background-color:#27537a;color:#fff}